hypher

hypher separates words into syllables.

[dependencies]
hypher = "0.1"

Features

All-inclusive: Hyphenation patterns are embedded into the binary as efficiently encoded finite automata at build time.
Zero load time: Hyphenation automata operate directly over the embedded binary data with no up-front decoding.
No allocations unless when hyphenating very long words (> 41 bytes). You can disable the alloc feature, but then overly long words lead to a panic.
Support for many languages.
No unsafe code, no dependencies, no std.

Example

use hypher::{hyphenate, Lang};

let syllables = hyphenate("extensive", Lang::English);
assert_eq!(syllables.join("-"), "ex-ten-sive");

Languages

By default, this crate supports hyphenating more than 30 languages. Embedding automata for all these languages will add ~1.1 MiB to your binary. Alternatively, you can disable support for all languages and manually choose which ones get added:

[dependencies]
hypher = { version = "0.1", default-features = false, features = ["english", "greek"] }

Each language added individually contributes:

Language	Space
Afrikaans	60 KiB
Albanian	1.4 KiB
Belarusian	3.9 KiB
Bulgarian	13 KiB
Catalan	1.7 KiB
Croatian	2.0 KiB
Czech	40 KiB
Danish	5.7 KiB
Dutch	63 KiB
English	27 KiB
Estonian	19 KiB
Finnish	1.3 KiB
French	6.9 KiB
Georgian	11 KiB
German	192 KiB
Greek	2.0 KiB
Hungarian	346 KiB
Icelandic	21 KiB
Italian	1.6 KiB
Kurmanji	1.4 KiB
Latin	1003 B
Lithuanian	6.5 KiB
Mongolian	4.9 KiB
Norwegian	153 KiB
Polish	16 KiB
Portuguese	343 B
Russian	33 KiB
Serbian	13 KiB
Slovak	13 KiB
Slovenian	5.5 KiB
Spanish	14 KiB
Swedish	24 KiB
Turkish	526 B
Turkmen	1.4 KiB
Ukrainian	21 KiB

Benchmarks

Task	`hypher`	`hyphenation`
Hyphenating `extensive` (english)	356ns	698ns
Hyphenating `διαμερίσματα` (greek)	503ns	1121ns
Loading the english patterns	0us	151us
Loading the greek patterns	0us	0.826us

Benchmarks were executed on ARM, Apple M1.

License

The code of this crate is dual-licensed under the MIT and Apache 2.0 licenses.

The files in patterns/ are subject to the individual licenses stated therein. The patterns are processed at build time and then embedded (i.e. statically linked) into your binary. However, hypher includes only patterns that are available under permissive licenses. Patterns licenses include the LPPL, MPL, MIT, BSD-3.